Medications for bacterial vaginosis treat or prevent vaginal infections caused by bacteria. They come as oral pills, vaginal creams, or vaginal suppositories. Common antibiotics include clindamycin (Cleocin) and metronidazole (Vandazole). Medications such as Fem pH (acetic acid / oxyquinoline) and Trimo-san (oxyquinoline / sodium lauryl sulfate) help restore vaginal pH levels to help prevent infections.